1. Chapter 16 Diagnostic tests, X-rays, and Procedures
Review
Chapter 16
Diagnostic tests, X-rays, and Procedures

2. Review
What do you introduce into the skin to induce a reaction(allergy testing)?
Antigen
A raised area on the skin that shows a positive reaction?
Wheal
This is a release of histamine?
Hypersensitive reaction

3. Review This is a life-threatening reaction? Anaphylactic shock
The patient must wait for how long after allergy testing?
20 min for possible reaction
The patch test is done to determine?
The cause of contact dermatitis

4. Review
This procedure is used frequently to diagnose heart disease and dysfunction?
Electrocardiogram(EKG/ECG)
What indicates the electrical impulses shown from a specific lead on a ECG/EKG?
Rhythm strip
What are placed on the patient’s limbs and chest and pick up the electrical current produced by the contractions of the heart?
Electrodes

5. Review What is known as the first part of the cardiac cycle?
Atrial depolarization(P wave)
The QRS wave corresponds to?
Depolarization of the right and left ventricles
T wave represents?
The repolarization or (recovery) of the ventricles
Know your lead placements

6. Review
This is anything that causes an interference in the ECG recording?
Artifacts
This is a stress EGC that is done while a patient is exercising on a treadmill or bicycle under careful supervision?
Stress test
This is a EKG/ECG test over a period of 24 to 48 hours?
Holter monitor
Define MRI
Magnetic Resonance Imaging
What is this test used for?
Tube -like structure used to view structures inside the human body

7. Review What are some contraindications for an MRI?
Any metal, including pacemakers, pregnancy
What test would you have a patient fast(NPO) midnight, the night before?
Abdominal ultrasound
What test would you have a patient drink about 30 ounces of fluid 1 hour before?
Fetal ultrasound

8. Review What does KUB stand for? Kidney, ureters, bladder
What is this test done for?
To diagnosis urinary diseases and disorders
This test aids in the diagnosis of breast masses as small as 1 cm in size or less?
Mammogram
What are some instructions that you would give the patient the day of the mammogram?
No deodorants, perfumes, or powders, ask if the patient could be pregnant